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Finding the Fourth Proportional to 122,488.44, 169,029.67 and 68,775.72

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Solution

The fourth proportional to 122,488.44, 169,029.67 and 68,775.72 is: 94,908.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,488.44 : 169,029.67 = 68,775.72 : x
  2. Step 2: Convert to fraction form
    122,488.44/169,029.67 = 68,775.72/x
  3. Step 3: Cross multiply
    122,488.44x = 169,029.67 × 68,775.72
  4. Step 4: Simplify right side
    122,488.44x = 11,625,137,255.61
  5. Step 5: Solve for x
    x = 11,625,137,255.61/122,488.44
  6. Step 6: Final answer
    x = 94,908.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.